Signs of Ancient Water on Mars (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This mosaic of images from the Curiosity rover's Mast Camera shows evidence of ancient lake and stream deposits on Mars. Credit NASA JPL-Caltech, MSSS Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.